ARCELORMITTAL-NY REGISTERED (MT) Institutional Shareholders
ARCELORMITTAL-NY REGISTERED (MT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.24B in MT holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of MT tracked by InsiderSet, reporting ownership valued at approximately $685.99M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $856.41M, representing an estimated gain of +24.84% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 68% of the total disclosed MT value among the investors covered in this analysis. Major shareholders include Fmr Llc, Dimensional Fund Advisors Lp, Maple Rock Capital Partners Inc., and several other long-term asset managers with concentrated positions in ARCELORMITTAL-NY REGISTERED (MT).
This page ranks the largest institutional MT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
307
Total Reported Value
$2.24B
Largest Holder
Fmr Llc
Largest Position
$685.99M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
58
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.03% | 11,391,416 | $685,991,127 | $856,406,655 | +$170,415,528 | +24.84% | |
| Dimensional Fund Advisors Lp | 0.04% | 3,253,361 | $195,915,055 | $244,587,680 | +$48,672,625 | +24.84% | |
| Maple Rock Capital Partners Inc. | 2.59% | 2,190,860 | $131,933,589 | $164,708,855 | +$32,775,266 | +24.84% | |
| Morgan Stanley | 0.00% | 1,503,680 | $90,551,685 | $113,046,662 | +$22,494,977 | +24.84% | |
| Blackrock, Inc. | 0.00% | 1,471,254 | $88,598,875 | $110,608,876 | +$22,010,001 | +24.84% | |
| Goldman Sachs Group Inc | 0.01% | 1,299,500 | $78,255,866 | $97,696,410 | +$19,440,544 | +24.84% | |
| Castle Hook Partners Lp | 0.83% | 1,290,147 | $77,692,652 | $96,993,251 | +$19,300,599 | +24.84% | |
| Bank Of New York Mellon Corp | 0.01% | 942,040 | $56,729,661 | $70,822,567 | +$14,092,906 | +24.84% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.11% | 934,168 | $56,255,597 | $70,230,750 | +$13,975,153 | +24.84% | |
| American Century Companies Inc | 0.02% | 828,040 | $49,864,569 | $62,252,047 | +$12,387,478 | +24.84% | |
| Man Group Plc | 0.08% | 756,328 | $45,546,072 | $56,860,739 | +$11,314,667 | +24.84% | |
| Retirement Systems Of Alabama | 0.12% | 674,150 | $40,597,313 | $50,682,597 | +$10,085,284 | +24.84% | |
| Bank Of America Corp | 0.00% | 525,303 | $31,633,747 | $39,492,280 | +$7,858,533 | +24.84% | |
| Scopus Asset Management, L.P. | 0.71% | 500,000 | $30,110,000 | $37,590,000 | +$7,480,000 | +24.84% | |
| Northern Trust Corp | 0.00% | 495,593 | $29,844,611 | $37,258,682 | +$7,414,071 | +24.84% | |
| Van Eck Associates Corp | 0.02% | 473,013 | $28,484,843 | $35,561,117 | +$7,076,274 | +24.84% | |
| Merewether Investment Management, Lp | 0.44% | 391,406 | $23,559,238 | $29,425,903 | +$5,866,665 | +24.90% | |
| Quantinno Capital Management Lp | 0.03% | 368,871 | $22,214,033 | $27,731,722 | +$5,517,689 | +24.84% | |
| Capital Wealth Planning, Llc | 0.11% | 350,450 | $21,104,099 | $26,346,831 | +$5,242,732 | +24.84% | |
| Royal Bank Of Canada | 0.00% | 345,508 | $20,807,000 | $25,975,291 | +$5,168,291 | +24.84% | |
| Aqr Capital Management Llc | 0.01% | 339,907 | $20,469,209 | $25,554,208 | +$5,084,999 | +24.84% | |
| Balyasny Asset Management L.P. | 0.03% | 316,595 | $19,065,351 | $23,801,612 | +$4,736,261 | +24.84% | |
| Albar Capital Partners Llp | 2.06% | 262,470 | $15,805,943 | $19,732,495 | +$3,926,552 | +24.84% | |
| Millennium Management Llc | 0.01% | 237,746 | $14,317,064 | $17,873,744 | +$3,556,680 | +24.84% | |
| Robotti Robert | 2.30% | 236,658 | $14,251,545 | $17,791,948 | +$3,540,403 | +24.84% | |
| Jpmorgan Chase & Co | 0.00% | 234,621 | $14,002,293 | $17,638,807 | +$3,636,514 | +25.97% | |
| Jb Capital Partners Lp | 1.91% | 205,000 | $12,345,100 | $15,411,900 | +$3,066,800 | +24.84% | |
| Cerity Partners Llc | 0.01% | 203,703 | $12,267,020 | $15,314,392 | +$3,047,372 | +24.84% | |
| Point72 Asset Management, L.P. | 0.02% | 186,723 | $11,244,459 | $14,037,835 | +$2,793,376 | +24.84% | |
| Citadel Advisors Llc | 0.01% | 185,497 | $11,170,629 | $13,945,664 | +$2,775,035 | +24.84% | |
| Jane Street Group, Llc | 0.01% | 182,981 | $11,019,116 | $13,756,512 | +$2,737,396 | +24.84% | |
| Summittx Capital, L.P. | 0.26% | 163,755 | $9,861,326 | $12,311,101 | +$2,449,775 | +24.84% | |
| Hennessy Advisors Inc | 0.31% | 159,900 | $9,629,178 | $12,021,282 | +$2,392,104 | +24.84% | |
| Amanah Holdings Trust | 0.52% | 148,000 | $8,912,560 | $11,126,640 | +$2,214,080 | +24.84% | |
| Charles Schwab Investment Management Inc | 0.00% | 136,860 | $8,241,709 | $10,289,135 | +$2,047,426 | +24.84% | |
| Ubs Group Ag | 0.00% | 135,087 | $8,134,939 | $10,155,841 | +$2,020,902 | +24.84% | |
| Wellington Management Group Llp | 0.00% | 130,153 | $7,837,814 | $9,784,903 | +$1,947,089 | +24.84% | |
| Bank Of Montreal | 0.00% | 129,627 | $7,806,138 | $9,745,358 | +$1,939,220 | +24.84% | |
| Neuberger Berman Group Llc | 0.01% | 129,479 | $7,774,867 | $9,734,231 | +$1,959,364 | +25.20% | |
| Xtx Topco Ltd | 0.10% | 125,706 | $7,570,015 | $9,450,577 | +$1,880,562 | +24.84% | |
| Capital Fund Management S.A. | 0.05% | 111,234 | $6,698,511 | $8,362,572 | +$1,664,061 | +24.84% | |
| D. E. Shaw & Co., Inc. | 0.00% | 101,197 | $6,094,083 | $7,607,990 | +$1,513,907 | +24.84% | |
| Peak6 Llc | 0.14% | 94,977 | $5,719,515 | $7,140,371 | +$1,420,856 | +24.84% | |
| Sei Investments Co | 0.00% | 85,737 | $5,162,310 | $6,445,708 | +$1,283,398 | +24.86% | |
| Envestnet Asset Management Inc | 0.00% | 85,124 | $5,125,653 | $6,399,622 | +$1,273,969 | +24.85% | |
| Mercer Global Advisors Inc | 0.01% | 84,030 | $5,060,302 | $6,317,375 | +$1,257,073 | +24.84% | |
| Qrg Capital Management, Inc. | 0.04% | 83,890 | $5,052,081 | $6,306,850 | +$1,254,769 | +24.84% | |
| Icon Advisers Inc/Co | 0.92% | 81,000 | $4,877,820 | $6,089,580 | +$1,211,760 | +24.84% | |
| Lpl Financial Llc | 0.00% | 75,750 | $4,561,642 | $5,694,885 | +$1,133,243 | +24.84% | |
| Hallstatt Advisors L.P. | 2.71% | 63,949 | $3,851,009 | $4,807,686 | +$956,677 | +24.84% |
Frequently asked questions about MT
Who owns the most MT stock?
The largest holders of MT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ARCELORMITTAL-NY REGISTERED (MT).
Is MT widely held by superinvestors?
Many widely followed stocks like MT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.